On a 4.5-6 inch Newtonian . . . is a 2 inch off-axis solar filter of adequate aperature to provide a decent image? This is the hole that many tube caps provide, but it seems small to me.
OR . . . in a scope this size, is it better to use a full aperature filter?
OR . . . in a scope this size, is it better to use a full aperature filter?
